[PRODUCT PARAMETER] - 2.5mm 3.5mm 4.5mm 5.5mm 6.5mm 7.5mm 8.5mm 9.5mm OD; 0.5mm Wall Thickness; 300mm/11.81inch Length. [MATERIAL] - Made of brass with passivation finish for high strength, oxidation resistance, corrosion resistance and long-lasting durability. [APPLICATIONS] - Commonly used in DIY projects, hobby, crafts, building model, home decoration, frames, industry, gardening products and more. [HOW TO USE] - It can be punched and processed with the right equipment according to your needs. Please be careful when you are processing the item. [SEAMLESS CONSTRUCTION] - The interior and exterior are smooth with no seam, beautiful and are available for precision applications.